Counting scale



Fels. 21, i928. 1,660,089

W. B. PAULSON COUNTING SCALE Filed Nov. 24. 1924 llll Patented Feb. 21,1928.

UNITED STATES WILLIAM B. PAULSON, OF WILIVIETTE, ILLINOIS.

GOUNTING SCALE.

Application led November 24, 1924. Serial No. 751,726.

My invention relates to counting scales, and has for its object,improvements in such devices. I may make my improvementl as part of thescale beam or lever, but I prefer to illustrate it herein as anattachment to scales already in use. The reason for this is that myinvention is capable of being applied to any of the ordinary beam scalesso as to make such weighing scale into a counting scale withoutdetracting from the scale its full capacity as a weighing device.

In the accompanying drawings Fig. 1 is a side elevation, partly insection, of an ordinary platform scale with my device attached to thescale beam;

Fig. 2 is an enlarged plan of the trough or channel which I connect tothe scale beam; and

Fig. 3 is a still more enlarged section on line 3 3 of Fig. 1, showingthe means of connection adjacent to the beam pivot.

In said drawings, 10 is the standard, and 11 is the platform of anordinary platform scale. The beam 12 is supported aty the pivot 13, andis connected at pivot 14 by rod 15 to the platform 11. On the beam isthe ordinary sliding poise 16. At the outer end of the beam the pendantpoise is removed, and a pan 17 is substituted therefor. his pan is madelighter than the removed poise so that the weight of the pan plus theweight of the parts of my attachment will have the same clect upon thescale beam Ias that ofthe removed pendent poise.

My attachment consists of a channel 18 which is suspended from the beam12 by bars 19 and 20. The connection to the beam for the bar 2O is bymeans of a strap 21 and screws 22 as shown in Fig. 1.

The connection for bar 19 is a little different as it is desired to havethat connection directly below the pivot 13. The reason for this is thatordinarily there is not room for it between pivots 13 and 14, and if itshould loe placed to the right of pivot 13 it would interfere with thesliding poise 16. Ordinaril Y, it is desired not to cut the beam in anyway when putting on the counting attachment for trial. This requiressome clamping arrangement, and I have devised a. simple clamp meanssuitable for this particular purpose.

In the bar 1), at about the positions shown in Fig. 3, are drilled holesfor the free passage of screw 23 and bolt 24. A clamping plate pr stripis provided, and there is a free hole therein for the bolt 2li. Thishole is at about the middle of the length of the strip 25. Near one endof the strip is a threaded hole for the screw 23. There isa nut 26 onthe outer end of bolt 24, and a nut 27 on screw 23 between the bar 19and the strip 25.

The parts are placed on the beam 12 in about the position shown in Fig.3, and the nut 2G is tightened to clamp the beam between the bar 19 andstrip 25. The nut 27 is then turned to spread the parts 19 and 25 atthis point. This results in moving strip 25 on bolt 2a as a fulcrum soas to put heavy clamping pressure on the beam to support the channel 13at this point- If the trial is satisfactory to the prospectivepurchaser, a hole is uslially drilled at the point 28 in Fig. 3 for thereception of a bolt or screw 29 shown in Fig. 1. This makes a permanentconnection out of what was before a temporary one.

On the front edge of the channel 18 is a scale 30 of the same length asthe distance between the pivot 13 and the point of suspension of the pan17. In ordinary scales, this distance is usually related to the distancebetween pivots 13 and 14, and the lower connections to the platform 11,so that one pound at the end of the scale beam will balance one hundredpounds on the platform. Under such conditions the scale 30 is providedwith one hundred graduations.

My device is applicable for counting large numbers of small articles ofthe same weight, such as screws, nuts or other objects. In using thedevice, an empty receptacle, such as a pan, box or keg, is placed on theplatform, and this is balanced by moving the poise 16. The articles tobe counted are then dumped into the receptacle.

kFrom the receptacle, articles are taken by hand and dropped into thepan 17 until they just o verbalance the remaining weight on theplatform. If one of the articles is now removed from the pan, then theweight on the platform will overbalance the weight in the pan. If thisremoved article is now placed in the channel 18 and slid along, therewill be found a point of exact balance.

Then this is accomplished, each article in the pan will mean one hundredarticles in the receptacle, and the graduation adjacent to the articlein the channel will represent the fraction of the next hundred. Forexample, if there are 7 5 articles in the pan, and the article in thechannel standsl at graduation 60, then theJ total number of articleswill be 7500 -l @Oil-75 -l- 1:7036. ln this, the first two numbersrepresent the number of arti'- cles in the receptacle, the third numberrep-Y resents thoseV in the pan, and the last number represents thearticle in the channel.

VIn counting scales as ordinarily madc,`the single ori-sample articlewhich is to represent the traction of al hundred in the' receptacle' onthe platform, is supported ina movable carrier. lVhen this samplearticle is moved along to count. those Vfractions of `a` hundred, thecarrier moveswithit, and to'V ondary beam graduatedV for fractions of ahundred otthe numberof articles to be counted, and a sampleiof thearticlesv to be counted becomes a secondary sliding poise. The secondarybeam and the secondary poise correspond to theV beam 12 and poise 16 inthat they are completely suicient for the purposewithout theintroduction'of a movable carrier to support the secondary poise.

ItY Will also be seen that thel introduction of the vsecondarybeam doesnot atleet the use of the primary beam :12 and the primary poise 16 inWeighing. Also, it Will be seen that the secondary beam and secondarypoise operate on the Vsame principle as the primary beam and primarypoise. In thev claims I will `use the term sliding poise to distinguishmy construction 'from those constructions in which the secondary poiseis supported and moved in 4a sliding or otherwise movable carrier. Y p YThe holder may be of any form that will extend overthe distance thruWhich the sample article must be'moved to getft-heproper balance, butlhave `shown it in the form' of a channel 18 because such channel isacon-v venient holder for articles ofthe kind ordinari-ly counted;Inusing-av stationary carrier along which an article maybe shifted astheprimary poise 16 is shifted, I simplify thel device, Vand avoid,movingVparts which are liable to getout of order.

That Il claim is:

l. The combination with the pivoted beam andslidingpoise thereof, of apan suspended at the free end of ythe beam and serving as the stationarypoise ofthe scale,'a'nd a holdersecured to the beamand havinggraduations troni' V.the pivot 'of the beam tothe Vpoint'of suspensionof the pan, said holder articles be counted and such sample ser'vingfasa secondary sliding poise co-operating 'with the Vgradcations ot theholder.

9 The combination.with a Weighing scale having a pivoted beam, aisliding poise, and aV pan; ot a counting scale consisting of a'sei'- Yondary Vbeam secured to the primary beam and extending trom'thepivot ofthe beam to the support oit the pan, said secondary'beam being arrangedto support a sample ot the articles to be counted so that such samplewvill serre as a secondary Apoise having the same relationship to thesecondary beam that the primary poise has to the primary beam.

4f. In a device clamping means for Vsecuring a Ysecondary of the classdescribed,

beam to a .primary beam in the device near i the pivot of the primarybeam, said clamping means consisting of albar secured to rthe secondarybeam and. having'its end engaging one side of the primary beam' belowthe pivot thereof, a short strip lying parallel to said bar and havingits upper end engaging the opposite side of the primary beam, a holtconnecting the-barand strip adjacent to the beam, .and a screw at thelower end oit' theV strip for moving it on the bolt asa tulcrum.

x'vILLrAM' sfrantsoit.

